package scenic.study.thinkinjava.io;//: c11:Logon.java
// From 'Thinking in Java, 2nd ed.' by Bruce Eckel
// www.BruceEckel.com. See copyright notice in CopyRight.txt.
// Demonstrates the "transient" keyword.

import java.io.*;
import java.util.*;

class Logon implements Serializable {
    private Date date = new Date();
    private String username;
    private transient String password;

    Logon(String name, String pwd) {
        username = name;
        password = pwd;
    }

    public String toString() {
        String pwd =
                (password == null) ? "(n/a)" : password;
        return "logon info: \n   " +
                "username: " + username +
                "\n   date: " + date +
                "\n   password: " + pwd;
    }

    public static void main(String[] args)
            throws IOException, ClassNotFoundException {
        Logon a = new Logon("Hulk", "myLittlePony");
        System.out.println("logon a = " + a);
        ObjectOutputStream o =
                new ObjectOutputStream(
                        new FileOutputStream("Logon.out"));
        o.writeObject(a);
        o.close();
        // Delay:
        int seconds = 5;
        long t = System.currentTimeMillis()
                + seconds * 1000;
        while (System.currentTimeMillis() < t)
            ;
        // Now get them back:
        ObjectInputStream in =
                new ObjectInputStream(
                        new FileInputStream("Logon.out"));
        System.out.println(
                "Recovering object at " + new Date());
        a = (Logon) in.readObject();
        System.out.println("logon a = " + a);
    }
} ///:~